[Asm] Improve "too few operands" errors
- We can still emit this error if the actual instruction has two or more
operands missing compared to the expected one.
- We should only emit this error once per instruction.
Differential revision: https://reviews.llvm.org/D36746
llvm-svn: 318770
diff --git a/llvm/utils/TableGen/AsmMatcherEmitter.cpp b/llvm/utils/TableGen/AsmMatcherEmitter.cpp
index 4fe060b..72fb530 100644
--- a/llvm/utils/TableGen/AsmMatcherEmitter.cpp
+++ b/llvm/utils/TableGen/AsmMatcherEmitter.cpp
@@ -3313,7 +3313,7 @@
OS << " DEBUG_WITH_TYPE(\"asm-matcher\", dbgs() << \"recording too-few-operands near miss\\n\");\n";
OS << " OperandNearMiss =\n";
OS << " NearMissInfo::getTooFewOperands(Formal, it->Opcode);\n";
- OS << " } else {\n";
+ OS << " } else if (OperandNearMiss.getKind() != NearMissInfo::NearMissTooFewOperands) {\n";
OS << " // If more than one operand is invalid, give up on this match entry.\n";
OS << " DEBUG_WITH_TYPE(\n";
OS << " \"asm-matcher\",\n";